Transferring mechanism



' G. BALL.

TRANSFERRING MECHANISM. APPLICATION FILED AUG- 1. 1919. 1,434,731 Patented Nov. 7, 1922 2 SHEETS-SHEET 31 INVENTOR Gko ge WIT/V558 I, a

A TTORN E YS -G.BALL

TRANSFERRING MECHANISM. APPLICATION FILED AUG-l. 1919,

1,434,731. I Patented No'v. 7, 192%.

Z SHEET$SHEET2- WITNESS v A TTORN E V9 "O. and having at its opposite end a cam.

oil 30 arranged for engagement with the "ace of a cam 31 on cam shaft 39, a spring 2 attached to the bell crank lever and to ome suitable portion of the frame of the iiachine serving to constantly maintain the can. roll and cam in contact. It will thus be evident that any movement of the bell crank lever due to the rotation of cam 31 will resuit in a movement of crank 24 and partial rotation of shaft 22, thereby imparting to housing 15, and in turn to conveyor 10, a swinging movement about the axis of shaft 22 as a center, the extent of which is primarily determined by the configuration of the face of cam 81 and relative proportions cf the arms of bell crank lever 26.

For the purpose of causing the conveyor to assume the proper positions-in this case for removing the patch from a table 44 and delivering it beneath the creasing plungermeans are provided for effecting a relative movement between the conveyor and the housing, comprising, in the form of the invention shown, a member 40 having a curved slot 4:1 adapted to receive a roller 42 carried by block 12, as best shown in Fig. 2., the member being pivoted to the frame of the machine upon a stud 41-8 and con nected through asuitable link 4:5 with one arm of the bell crank lever 16, in turn pivoted on shaft 8 and having adjacent the outer end of its opposite arm a cam roller 4-9 engaging a suitable cam 48 on main cam shaft 39, a spring 51 connected to the bell crank lever and to some suitable part of the frame of the machine serving to maintain the cam roller and cam in constant con tact, so that the rotation of the cam will effecta movement of member 40 about stud 43 in turn effecting a movement of block 12 in housing 15 and a resulting movement of conveyor 10 for a purpose to be hereinafter described.

hleans are also provided to cause the patch to adhere to the conveyor during the move ment of the latter from a position adjacent table 4 1 to a position adjacent the envelop blank to which the patch is to be applied, and for this purpose-the conveyor is proyided with one or more internal apertures or passages 60 terminating at the extremities of the conveyor and communlcating through flexible 1p1n 62 with a vacuum um which may comprise a cylinder 65 open at one end and having a piston 66 actuated through a bell crank lever 67 pivoted to the frame of the machine and operated through a link 68 from a suitable cam (not shown) although, if desired, the pump may be of any other preferred construction; Means are also provided, as best shown in Fig. l, for releasing the vacuum in the pump, and in turn in the conveyor, at the proper point in the cycle of operations of the machine; for example, a valve 70 operative to close a port 71 in the cylinder 65 and actuated through a suitable link 72 by means of a bell crank lever 73 pivoted to one of the brackets so and carrying a cam roll 7 1 maintained in contact with a suitable cam 75 on main cam shaft 39 by a suitably positioned spring 78, the cam being adapted to raise valve 70 against the tension of spring 78 to open port 71 and release the vacuum in the cylinder at the proper point in the cycle of operations as hereinafter described.

In order to permit the conveyor to bring the patch into proper registration with any other part of machine, such as adjacent the creasin plunger 10 in this case, the plunger 10 is provided with a pair of suitably disposed slots 80 of suflicient size to receive the arms of the conveyor so that it can assume a posi ion substantially parallel to the plunger shalt, and, similarly, to enable the conveyor to engage the paper beneath a retaining element on table 44, the former, as well as any other portions are also provided with similar slots 82, as best shown in Fig. l.

The parts having been constructed and as sembled in connection with suitable en velop machine preferably substantially as described, the operation may be briefly indicated as follows: resuming the parts to be in substantially the position shown in F ig. 1, a continued rotation of shaft 39 first causes cam 31 to actuate bell crank lever 26 to swing housing 15, and in turn conveyor 10, rearwardly toward table 44:, member 40 remaining substantially stationary until the housing has completeo about two-thirds of its rearward swing, when, through the actuation of hell crank lever 46 under the influence of cam l8 the extremity of curved member 10 is oepressed, thus forcing the conveyor radially outwardly with respect to the housing to cause it to register with that portion of web N which has been fed onto table 14, the portion havins been severed to form a patch. Substantially simultaneously with this operation, vacuum is formed within cylinder 65 and in turn within the conveyor, thus causing the severec patch to adhere to the latter] The continued. ro tation of shaft 39 now brings the cam 48 into position to swing the out r extremity of member 10 upwardly to raise the coriveyor with its adhering patch away from table 44- sufficiently to permit the patch to clear the table during the forward swing of the conveyor which now commences and which is effected by the action of cam 31 whose continued rotation lifts the outer end of bell crank lever 26 to swing the housing forwardly to assume a position parallel with the creasing plungershaft, thus bringing the patch into suitable position over the blank. Simultaneously with the termination of the forward swing of the conveyor, member is caused to swing slightly downwardly thereby lowering the conveyor vertically towards the blank, the vacuum in the conveyor being simultaneously released under action of cam 75 to free the latch from the conveyor. After this has been done the cam 48 operates to raise the lower end of the conveyor or member i0 upwardly a sufiicient distance at which the lower end of the conveyor will assume its normal initial position described above at the beginning of the cycle of operations.

ll hile I have herein illustrated and de scribed with considerable particularity a preferred embodiment of my invention and have shown the same in connection with an envelop machine, I do not thereby desire or intend to limit myself specifically to such embodiment of my invention, or to its use in connection with an envelop machine identical with that to which I have referred, or to envelop machines generally, as suitable changes and modifications may be made in the details and arrangement of the vari-= ous means and instrumentalities employed, and the invention may be adapted for use in connection with other forms of machines, without departingfrom the spirit and scope of the invention as defined in the appended claims.

Having thus described my invention, I claim and desire to protect by Letters Patent of the United States:

1. In a transferring mechanism, a housing movable about a fixed axis, a patch conveyor carried by said housing and movable relatively thereto, means operative to move said housing, a movable slotted member operative to position said conveyorwvith re spect to said housing, and means operative to cause the movement of said member.

2. In a transferring mechanism, a swinging housing, means operative to swing said housing, a patch conveyor movable with said housing and relatively movable with respect thereto and means comprising a vertically movable pivoted slotted member operative to effect the movement of said conveyor with respect to said housing at predetermined periods with relation to the movement of said housing.

3. A transferring mechanism including a housing adapted to be oscillated about a fixed axis, a conveyor carried by said housing, slotted means operative to positively reciprocate said conveyor in the housing radially with respect to said axis, means operative to retain a sheet on said conveyor and means to render said last-mentioned means operative and inoperative at predetermined periods.

4:. In a transferring mechanism, the combination of a swinging housing, a conveyor, slotted means effective to cause positive reciprocation of the conveyor therein, means associated with the conveyor adapted to retain a sheet thereon and means automatically operating to render said last-mentioned means operative and inoperative at certain predetermined periods of operation of said transferring mechanism.

5. A transferring mechanism including a l'iousing adapted to swing about a fixed axis, a member carried by said housing adapted to be reciprocated therein radially with respect to said axis, slotted means operative to positively reciprocate said member, convey ing means carried by said member and means associated with said conveyor for retaining a sheet thereon, including a vacuum creating means and cam operated means for antomatically controlling the operation of said sheet retaining means through said vacuum.

in witness whereof, I have hereunto set my hand this 30th day of Jul 1919.

GEOR EBALL. 

